Bolster for cars and car-trucks.



y PATBNTED JULY 2s, .1903. s. P. BUsH'aLJ. H. MGGORMIGK. BoLsTERPoR.cARs AND GAR TRUCKS.

APPLIGATIOH 'FILED JULY 317 1902.

N0 MODEL.

f Wm 'NVENTORS' W' l@ Alorny m. S M f. W w v UNITED STATES `PATENT:Patented July 2s, 190s.

il FFICE.

SAMUEL P. BUSH AND JOHN H. MOOORMIOK, VOF COLUMBUS, OHIO, ASSIGNORS TOTHE BUCKEYE MALLEABLE IR LUMBUS, OHIO.

ON AND COUPLER COMPANY, OF ICO- soLsTEn Fon cARsiANo CAR-TRUCKS.

. ,SPECIFICATION `forming part of Letters Patent No. 734,665, dated July28, 1903. Application filed July 3l, 1902. Serial No. 117.843. (Nomodel.)

To a/ZZ whom t may concern:

Beit known that we, SAMUEL P. BUsH and JOHN H. MCCORMICK, of Columbus,in the county of Franklin and State of Ohio, have in- 5 vented `certainnew and useful Improvements in Bolsters for Cars and Car-Trucks; and wedo hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart :o to which it appertains to make and use the same.

Ourinvention relates to an improvement in holsters for cars andcar-trucks, its object being to provide a cast-steel bolster constructedrable in use, of light weight, and capable of being manufactured at acomparatively small initial cost.

With these ends in view the invention con- `zo sists in certain featuresof construction and arrangements of parts, as will be hereinafterdescribed, and pointed out in the claims.

In the accompanying drawings, Figure l is a View in side elevation. Fig.2 is a plan view.

z 5 Figs. 3, 4, and 5 are transverse sections taken,

respectively, on the lines aa, b b, and c o of Fig. 1.

One member or plate 1 is downwardly inclined from the center-bearing 2to the oppo- 3o site ends of the bolster, while the other member orplate 3 is preferably made straight throughout its length. At each endof thebolster the top and bottom members are united by the short sidewebs 6 6 and the central Webs 5,

3 5 the latter extending from the outer end of the bolster inwardly to apoint 9 and inside the inner ends of the side Webs 6 6 and from thepoint 9 to the central web is divided into two ribs l0 10, which extendinwardly a considerable distance and merge into the top and bottommembers. Depending flanges-11 are formed on the side edges ofthe topmember 1 at the central portion of the bolster,while upwardlyprojectinganges 4 are formed on the side edges of the bottom member 3. It will beobserved that the side webs 6 6, central webs 5, and side lianges 11 and4 are constructed so 15 in such form asto render it strong and du-- thattheir ends overlap one another, so as together constitute continuousstrengthening `flanges or ribs extending the entire length of 5o thebolster.

The center column or pillar 2 is reinforced and strengthened by thelongitudinally and transversely arranged Webs 7 and 8, which connect thetop and bottom members and serve to strengthen the central portion ofthe bolster and its center-bearing.

A bolster of the form and construction above described is adapted to bemade of cast-steel and produced at a low initial cost. The dis- 6oposition of the metal entering into its construction is such as toproduce a bolster of minimum weight and of great strength andstiffnessto resist transverse shocks and strains resulting from blows orshocks imparted to a car in the direction of its length.

Having fully described our invention, what we claim as new, and desireto secure by Let- -ters Patent, isd

l. A cast-steel bolster comprising top and 7 0 bottom members havingside connecting-Webs at the ends only and having central webs castintegral with opposite ends and terminating at points inwardly removedfrom the center of the bolster.

2. A cast-steel bolster consisting of top and bottom members each havingcast integral therewith a vertical ange on each of its side edges whichextend along the central portion of the bolster, substantially as setforth. 8o

3. A cast-steel bolster consisting of top and lbottom members havingtheir ends connected by side and center webs and provided with sideflanges all cast integral with the top and bottom members, substantiallyas set forth.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses,

Witnesses:

C. E. ROTH, W. A. MARSH.

